dollar at $ 1.3354. >> g-20 finance ministers meeting in moscow to look at ways to boost the global economy. >> at the top of their agenda is stopping currents -- countries from using their currencies to gain an unfair economic advantage. japan's bank is under particular scrutiny for currency manipulation. the bureau has gained around 25% on the yen and the dollar about 15% in the last three months. >> austerity in europe, governments are watching every penny, which means tax dodgers are getting more attention. >> not just rich plutocrats, but global companies as well. for them, it is standard operating procedure to hire lawyers to look for loopholes that could save the millions in taxes. >> now, a london-based group is trying to change that. >> can these men stop global companies from dodging taxes around the world? tax officials from australia, britain, and china analyze complex schemes to reduce company tax burdens. this one leaves from england to australia, taking advantage of tax havens along the way. the authority of tax officials often ends at the border. investigators request inform